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US 2026/0225949 A1Published application
Method for processing ceramic substrate and ceramic substrate
AssigneeNippon Electric Glass Co., Ltd.
InventorMitsuyoshi TAKUSARI
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Abstract
A ceramic substrate 111 has a ceramic part 112 containing Al2O3. A method for processing the ceramic substrate 111 comprises an irradiation step in which a portion of the main surface of the ceramic part 112 is irradiated with laser light LB. A colored portion is formed in the irradiation step of this method for processing the ceramic substrate 111.
Claims17
A method for processing a ceramic substrate including a ceramic portion containing Al2O3, the method comprising:
- an emission step of emitting a laser beam toward a part of a main surface of the ceramic portion,
- wherein the emission step forms a colored portion.
A ceramic substrate, comprising:
- a ceramic portion containing Al2O3;
- an alignment mark arranged on the ceramic portion;
- and
- a colored portion that differs in color from the ceramic portion, wherein
- the colored portion is formed in a region adjacent to the alignment mark.
2 more elements
A ceramic substrate, comprising:
- a ceramic portion containing Al2O3;
- and
- a colored portion that differs in color from the ceramic portion, wherein
- the colored portion is colored using Al in the ceramic substrate.
1 more element
Dependencies are inferred from the claim text.